Rule number one: Food and clothing. That is, anyone can ensure his basic living needs (including basic medical needs) even if he doesn't work all his life.
Article 2: Make the best use of everything. That is to say, in such a society, everyone can give full play to their greatest talents or engage in the work they are most interested in.
Rule number three: treat death like death. That is, everyone can face death calmly.
My ideal society is not the "ultimate" or "perfect" human society. Everyone has his own idea of a "perfect" society, such as equality for all, eliminating poverty and disease, eliminating all factors that cause people's suffering and so on. I am not a relativist, but I would rather see a colorful world: not only colorful substances, but also various emotions. "Absolute equality" will lead to "absolute inequality", and there is no happiness without pain. Therefore, the perfect world that people often say does not appeal to me. If such a world can be realized, it is also for the "pain" that mankind is currently facing. I believe that these "pains" will be eliminated one day, but so will other "pains" unknown to human beings.